Revision 1:2cf8f0893afd, committed 2014-07-24

Comitter:

bentrevett

Date:

Thu Jul 24 12:55:11 2014 +0000

Parent:

0:bdbd3d6fc5d5

Commit message:

Reading and Writing to SD Card; ; Description:; ; A small project made with mbed (mbed.org) on the FRDM-KL64 using the SD card capabilities.; The program will open a file called test.txt in the root of the SD card, and will create one if it does not exi

Changed in this revision

diff -r bdbd3d6fc5d5 -r 2cf8f0893afd SDFileSystem.lib
--- a/SDFileSystem.lib	Fri Dec 07 11:25:01 2012 +0000
+++ b/SDFileSystem.lib	Thu Jul 24 12:55:11 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/SDFileSystem/#c8f66dc765d4
+http://mbed.org/users/mbed_official/code/SDFileSystem/#7b35d1709458

diff -r bdbd3d6fc5d5 -r 2cf8f0893afd main.cpp
--- a/main.cpp	Fri Dec 07 11:25:01 2012 +0000
+++ b/main.cpp	Thu Jul 24 12:55:11 2014 +0000
@@ -1,19 +1,42 @@
 #include "mbed.h"
 #include "SDFileSystem.h"
  
-SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
- 
+SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); //mosi, miso, sclk, cs
+
+
+#define charlimit 100
+char words[charlimit];
+int n=0,c;
+
 int main() {
-    printf("Hello World!\n");   
- 
-    mkdir("/sd/mydir", 0777);
+    
+    //writing to SD card
+    printf("Opening SD card...\r\n");   
+    
+    FILE *fp = fopen("/sd/test.txt", "w");
+    if(fp == NULL) {
+        error("Could not open file for write!\r\n");
+    }
     
-    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
-    if(fp == NULL) {
-        error("Could not open file for write\n");
-    }
-    fprintf(fp, "Hello fun SD Card World!");
+    printf("Writing to SD card...\r\n");
+    fprintf(fp, "one two three four five\r\n");
     fclose(fp); 
+    
+    //reading from SD card
+    FILE *fp1 =fopen("/sd/test.txt.",  "r");
+    if(fp1==NULL){
+        error("Could not open file for read!\r\n");
+        }
+    
+    printf("Reading from SD card...\r\n");
+    
+    while((c=fgetc(fp1)) && c!=EOF){
+        words[n]=c;
+        n++;
+        }
+        
+    printf("Read from SD card: %s",words);
+    
+    fclose(fp1);
  
-    printf("Goodbye World!\n");
 }

diff -r bdbd3d6fc5d5 -r 2cf8f0893afd mbed.bld
--- a/mbed.bld	Fri Dec 07 11:25:01 2012 +0000
+++ b/mbed.bld	Thu Jul 24 12:55:11 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/63cdd78b2dc1
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/04dd9b1680ae
\ No newline at end of file